car ran fine till i put sunoco in. i have had bad sunoco gas in 3 of my cars, i only went there because I wasnt paying attention and would have ran out of gas if i wouldnt have stopped. needless to say i knew right away my car didnt like the additives. ran rich, sputtered, fouled out plugs. wanna come take a look at my car? i hit the plugs with a torch and it stopped missing, then started missing again after i took it to put more gas in to try and dilute the sunoco shit.. i said fuck it and went and bought new plugs.. im thinking im gonna go put them in. if you would like to come and see the supra, you are more than welcome. my guess is you will blame it on the gas too.